Daniel e



UNITED STATES DANIEL n. BURNS, or DAYTON, onto,

ASSIGNOR TO IMSELF AND ALBERT L. JACKSON, OF WASHINGTON, DISTRICT OF COLUMBIA.

STRAIGHT-WAY-VALvi-z. i

SEJIFIGATION forming `pari: of Letters Patent No. 270,009, dated January 2, 1883.

Application filed my 26, ieee. (No model.)

To all 'whom t may concern q Beit known that I, DANIEL' It.- BURNS, a citizenof the United States, residingat Dayton, in the county of Montgomery and State of Ollio, have invented certain newand useful lmprovementsin Straight-Way Valves; and I do 'hereby declare 'the following to be a full, clear, and exact description of the, invention, such as will enable others skilled in the art to 1c which it appertains to make and use the same. My invention relates to improvements in straight-way valves; and the object is to provide a straight-way valve in which the two valve-faces are iirmly pressed against their seats when the valve is closed, and thereby to prevent leakage, and at the same time to instantly release and easethem from their seats when the valve is to be opened.

My invention consists in combining, with a zo valve-casing and its valve-stem, a carrier located on the inner plain-surfaced end ot' the valve-stem and secured thereon by a fastening screw or nut, with the disks or gates having central prqjections'loosely seated in apertures g 5 formed in the carrier, the end ofthe valve-stem and the interior or bore of the carrier being so constructed that when the carrier is placed on the. plain'surfa-ced or scre'wless` portion ot' the stem and the nut or screw applied the carrier 3o cannot be accidentally detached by turning the valve-stem for operatic g the disks or gates for opening or closing the ports.

The invention further consists in the construction and arrangement of certain parts of a straight-way valve by which the above results will be accomplished, all of which will be more lull y described hereinafter, reference be ing had tofthe accompanying drawings and the letters of reference marked thereon. 4c Like letters of reference refer to like parts in the different gures ofthe drawings,in which- Figure 1 is avertical longitudinal section of my improved valve. Fig. 2 is a part vertical crosslsection on line :n .n of Fig. l and a part elevation. Fig. 3 is a plan view ot' the crosshead.

In the drawings, A indicates the valve-cas ingor shell, having two openings orports, P, with screw threads or flanges to connect them 5o with the pipes. In this casing the valve disks securely tit on the seats a. The disks dr gates are provided with teats or projections b b', which enter and loosely it into the apertures Y c c in a cross-head, D, which has two notches,

d d', oneat each end, that tit over two guides, g g', on theinside ofthe valve-casing, and serve .to guide the cross-head andV disks or gates to and from the seats. The valve-stem is shownas provided with a wedgeshape part, as atE; V6o but it is evident that it could beof any other form for connecting with the disks or gates without ydeparting from the spirit ot myinvention. The cross-head, support, or carrier D is loosely titted on the valve-stem, and is held in place by a suitable nut and washer,f, or other :fastening device. When the valve is to' be closed the disks or gates are pressed upon their seats by the wedge part E, which forces the disks or gates apart or upon their seats; 7c but on opening the valve, by retractingthe wedge part E the disksA or gates will be released, and are free to move away or rise from their seats. A cap, F, with an ordinary stui- 5 ing-box, G, is arranged on the valve-casing, by which leakage is prevented around the valvestein. A collar, h, on the stem prevents the disks 0r gates from passing too high in the casing when the valve is opened.

Tile valve-faces may be made either parallel, 8o as shown in the drawings, orA they may be made inclined or wedge-formed, and will operate in a similar manner, and the seats can be fiat or rounding on their faces. l

j An important feature of my iuventionis that in case the disks or gates need grinding to their seats a suitable tool can be attached to i the teat and the grinding done through the` opening P.

The operation is as follows: When the valve 9o is to be closed the valve-stern and the disks or gates descend, and when they come in contact with the projections t' the disks are forced apart by means'of the wedge part of the stem and iirmly close the openings. When the valve-stem is turnedin the opposite direction the wedge part of the stem releases the disks or Vgates from the pressure exerted on them, when they will be liberated from their seats and the valve can be easily opened.

The valve can be made of any suitable size IOG or gates B B are contained, and when closed and con figuration, according to circumstances, l

without departing from the spirit of my invention. It 'Will be noticed that the essence of my invention consists in thc employment of valve disks or seats, which are loosely connected. with a cross-head or other suitable carrier or support carried vby the valve-stem, the construction and arran gement bcingsuch that the disks or gates are capable of being moved or advanced to and from their seats with perfect accuracy, and when forced against their seats they will automatically and uniformly adjust their faces to the faces of their seats, provided the faces of the disks or gates and the faces ot' their seats have imparted to them during the process of construction corresponding or orking bearing-faces. lf the valve-seats possess parallel or vertical seats vor faces the faces of the disks or gates will he correspondingly formed; but it' said seats be formed with inclined faces, then the faces ofthe disks or gates will be correspondingly formed, so as tomatch with each other, but in allinstances the disks or gates should be connected with a support orcarrier upon or carried by the valve-stein, each by a loose connection, in the nature of a universal joint, so that said gates or disks will be permitted to freely adjust themselves to their seats when brought in contact therewith.

What I claim isteats or projections, b b', tting into openings c in a cross-head, D, and operated by a wedge,

E, on the valve-stem O, said wedge passing through the cross-head, substantially as specied. Y l v The straight-way valve herein describedconsisting of the casingA, having ports P and seats a a., in combination with the disks or gates B B', provided with teats b b', fitting into apertures c in the cross-head D and operated by a valve-stern, C, having Wedge part E, formingpart thereof, and all constructed and arranged substantially as shown and described.

In testimony whereof' I hereby affix my signature in presence of two Witnesses.

DANIEL R. BURNS.

Witnesses:

A. L. JACKSON, L. F. KELEHER. 

